economics, we are not suggesting that economic issues should drive u.s. policy one way or another about preventing nuclear iran. but it's come up in the debate. it has been raised, certainly in terms of, let's say, about the impact on how tough are sanctions should and about relating military options. so wanted to say okay, let's do what this debate a little more. what are the costs of inaction. obviously, when you talk but a nuclear iran, i think it's more important consideration, the senator suggested, we have strategic concerns, the human aspect, you know, what would happen if there are competence alone. obviously, those are really preeminent concerns, but the economic concern is very legitimate and it's been raised certainly women have a tough economy as we do right now. so that's what we have wanted to try to address, and we hope, you know, we think the public and policymakers need to consider.